A simple example:
10 people make widgets. Annual production is 10 widgets. Mean annual standard of living is 1 widget.
9 people make widgets, 1 person is on UBI. Annual production is 9 widgets. Mean annual standard of living is 0.9 widgets.
In the second example one widget was destroyed, and everyone was affected.
We are all counting on one another to to create value. At my business, in my community, and our country as a whole, I'm counting on you to take a job and work, because if you don't we will both have a lower standard of living.